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    ISO 27769-2016 Wood-based panels - Wet process fibreboard《木基板材 湿法纤维板》.pdf

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    ISO 27769-2016 Wood-based panels - Wet process fibreboard《木基板材 湿法纤维板》.pdf

    1、 ISO 2016 Wood-based panels Wet process fibr eboar d Panneaux base de bois Panneau de fibres obtenu par procd humide INTERNATIONAL STANDARD ISO 27769 First edition 2016-12-15 Reference number ISO 27769:2016(E) ISO 27769:2016(E)ii ISO 2016 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2016, Pu

    2、blished in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Perm

    3、ission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.org ISO 27769:2016(E)Foreword iv

    4、1 Scope . 1 2 Normati v e r efer enc es 1 3 T erms and definitions . 1 4 A bbr e viat ed t erms 2 5 Classifications, designation and c oding 2 5.1 General . 2 5.1.1 Classification matrices 2 5.1.2 Structural grades . 3 5.2 Softboards . 3 5.3 Hardboards 3 6 Mandat ory t ests r elating t o each gr ade

    5、 4 6.1 General . 4 6.2 Softboards . 4 6.3 Hardboards 4 6.4 Supplementary properties 4 7 Thickness r anges 5 7.1 Specification values . 5 7.2 Softboards . 5 7.3 Hardboards 5 8 Expr ession of specification limits and gener al r equir ements 5 8.1 Expression of specification limits . 5 8.2 Lower specif

    6、ication limits . 6 8.3 Upper specification limits 6 8.4 Density variation, dimension and moisture content requirements 6 9 R equir ements for soft boar ds 7 9.1 Requirements for general purpose softboard for use in dry conditions . 7 9.2 Requirements for general purpose softboard for use in humid co

    7、nditions . 7 9.3 Requirements for general purpose softboard for use in high-humidity conditions . 7 9.4 Requirements for general purpose softboard for use in exterior conditions . 7 9.5 Requirements for load-bearing softboard for use in dry conditions . 8 9.6 Requirements for load-bearing softboard

    8、for use in humid conditions 8 10 R equir ements for har dboar ds 8 10.1 Requirements for general purpose hardboard for use in dry conditions 8 10.2 Requirements for general purpose hardboard for use in humid conditions 9 10.3 Requirements for general purpose hardboard for use in high-humidity condit

    9、ions . 9 10.4 Requirements for general purpose hardboard for use in exterior conditions . 9 10.5 Requirements for load-bearing hardboard for use in dry conditions 10 10.6 Requirements for load-bearing hardboard for use in humid conditions 10 Annex A (normative) Calculation of 5-per c entile and 95-p

    10、er c entile v alues 12 Bibliogr aph y .14 ISO 2016 All rights reserved iii Contents Page ISO 27769:2016(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is no

    11、rmally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in

    12、 the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular

    13、the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this do

    14、cument may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.

    15、org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformit y assessment, as well as information about ISOs adherence to the W

    16、orld Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html. The committee responsible for this document is ISO/TC 89, Wood-based panels, Subcommittee SC 01, Fibre boards. This first edition cancels and replaces ISO 27769-1:2

    17、009 and ISO 27769-2:2009, which have been technically revised.iv ISO 2016 All rights reserved INTERNATIONAL ST ANDARD ISO 27769:2016(E) W ood-based panels W et pr oc ess fibr eboar d 1 Scope This document provides a classification matrix and related mandatory tests for two types of wet process fibre

    18、board made from wood: softboards and hardboards and specifies the relevant manufacturing property requirements. NOTE 1 Wet process fibreboards are divided into three types: softboards, medium boards and hardboards. This document is not applicable to medium boards. NOTE 2 Fibreboards are broadly divi

    19、ded into two groups based on the manufacturing process, namely the dry-process group and the wet process group. This document is not applicable to dry-process fibreboards (see ISO 16895). NOTE 3 The values listed in this document relate to product properties used to classify fibreboards into one of

    20、the different types. The values are not characteristic values to be used for design purposes. When fibreboard is classified as load-bearing and nominated for structural applications, characteristic strength and stiffness values are established based upon testing in accordance with ISO 16572 or equiv

    21、alent ASTM or EN Standards. Alternatively, for specific load-bearing applications (e.g. walls, roofs, floors and I-joist webs), the load-bearing fibreboard would meet the specific performance requirements for that intended application. 2 Normat i v e r efer en c es The following documents are referr

    22、ed to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3340, Fibre building boards

    23、 Determination of sand content ISO 9426, Wood-based panels Determination of dimensions of panels ISO 9427, Wood-based panels Determination of density ISO 16978, Wood-based panels Determination of modulus of elasticity in bending and of bending strength ISO 16979, Wood-based panels Determination of m

    24、oisture content ISO 16981, Wood-based panels Determination of surface soundness ISO 16983, Wood-based panels Determination of swelling in thickness after immersion in water ISO 16984, Wood-based panels Determination of tensile strength perpendicular to the plane of the panel ISO 16985, Wood-based pa

    25、nels Determination of dimensional changes associated with changes in relative humidity ISO 16998, Wood-based panels Determination of moisture resistance Boil test ISO 20585, Wood-based panels Determination of wet bending strength after immersion in water at 70 C or 100 C (boiling temperature) 3 T er

    26、ms a nd definiti ons For the purposes of this document, the terms and definitions given in ISO 17064 and the following apply. ISO 2016 All rights reserved 1 ISO 27769:2016(E) ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: availa

    27、ble at http:/ /www.electropedia.org/ ISO Online browsing platform: available at http:/ /www.iso.org/obp 3.1 w e t p r o c e s s f i b r e b o a r d wood fibreboard with a forming line moisture content of greater than 20 % and whose primary bonding results from the felting of the wood fibres and thei

    28、r inherent adhesive properties Note 1 to entry: According to the density, the types of fibreboard are the following: a) softboards, of density 400 kg/m 3 ; b) medium boards, of density 400 kg/m 3to 840 kg/m 3 ; c) hardboards, of density 800 kg/m 3 . Note 2 to entry: Tables for the classification of

    29、medium boards are not included in this document. They can be included as they become available on the international market. Note 3 to entry: Density ranges given in product descriptions in 5.2 and 5.3 are a guide. Manufacturers can classify a product as a particular type if the product is within 20

    30、% of the nominated density range and if it has all of the properties of the nominated type. 4 A bbr e viat ed t erms The following abbreviated terms are used in the preparation of the classification matrices: REG regular for use in dry conditions only MR moisture resistant for use in humid condition

    31、s HMR high moisture resistant for use in high-humidity conditions EXT exterior for exterior use above ground LB load-bearing for structural or load-bearing use GP general purpose for use in general applications and furniture, not requiring the specific properties of load-bearing grades DIY do-it-you

    32、rself for use in home projects, rather than by professional tradespersons NOTE For definitions of the terms dry, humid, high humid, load-bearing and structural, see ISO 17064. 5 Classific ations, des ignation and c oding 5.1 General 5.1.1 Classification matric es Overall classification matrices, whi

    33、ch include all major classes available at the time of publication, are given in Table 1 for softboards and in Table 2 for hardboards.2 ISO 2016 All rights reserved ISO 27769:2016(E) 5.1.2 Structur al gr ades When a product is used in a complex load-bearing or structural application, additional infor

    34、mation shall be available in the form of characteristic values derived from structural testing (see ISO 16572), experimental test results or history of use to validate its performance under the proposed conditions. 5.2 S oft boar ds An overall classification matrix, which includes all major classes

    35、available at the time of publication, is shown in Table 1. Table 1 allows for future grades to be included as they become available on the international markets. T a b l e 1 C l a s s i f i c a t i o n m a t r i x f o r s o f t b o a r d s S o f t b o a r d t y p e C o nd i t i o n s of u s e D r y

    36、, r e g u l a r H umi d H i g h h u m i d E x t e r ior SB-GP REG General purpose softboard MR General purpose softboard HMR General purpose softboard EXT General purpose softboard A p p l ic a t ion examples Partitions, acoustic Partitions, acoustic, rigid underlays Advertising Joints SB-LB No exis

    37、ting product MR load-bearing softboard No existing product No existing product A p p l ic a t ion examples Rigid underlays Additional attributes such as fire retardant (FR), insect retardant (I) and fungi retardant (F), may be added to the softboard classification of Table 1. 5.3 Hardboards An overa

    38、ll classification matrix, which includes all major classes available at the time of publication, is shown in Table 2. This table allows for future grades to be included as they become available on the international markets. T a b l e 2 C l a s s i f i c a t i o n m a t r i x f o r h a r d b o a r d

    39、s Hardboard type C o nd i t i o n s of u s e D r y , r e g u l a r H umi d H i g h h u m i d E x t e r ior HB-GP REG General purpose hardboard MR General purpose hardboard HMR General purpose hardboard EXT General purpose hardboard A p p l ic a t ion examples Furniture, doors, packaging, DIY uses Fu

    40、rniture, doors, packaging, DIY uses, overlay floors Backer-boards Siding HB-LB REG load-bearing hardboard MR load-bearing hardboard No existing product No existing product A p p l ic a t ion examples Shelving, general construction General construction Additional attributes such as fire retardant (FR

    41、), insect retardant (I) and fungi retardant (F), may be added to the hardboard classification of Table 2. ISO 2016 All rights reserved 3 ISO 27769:2016(E) 6 Mandat ory t ests r elating t o each gr ade 6.1 General The following mandatory tests shown in Tables 3 and 4 shall be applied to the various f

    42、ibreboard grades identified in Tables 1 and 2, respectively. All property requirements shall be met at dispatch from the factory. 6.2 S oft boar ds T a b l e 3 T e s t s r e l a t i n g t o s o f t b o a r d g r a d e s Property M et h od SB-GP SB-LB D i m e n s i o n s t o le r a n c e ISO 9426 DHM

    43、E DH D e n s i t y v a r i a t ion ISO 9427 DHME DH Moi s t u r e c ont e nt ISO 16979 DHME DH B e nd i n g s t r e n g t h ( M O R ) ISO 16978 DHME DH M o d u l u s of e l a s t i c i t y ( M O E ) ISO 16978 DH T h i c k n e s s s w e l l i n g a f t e r 2 h ISO 16983 DHME DH D Dry conditions. H Hu

    44、mid conditions. M High humid conditions. E Exterior conditions. 6.3 Hardboards T a b l e 4 T e s t s r e l a t i n g t o h a r d b o a r d g r a d e s Property M et h od HB-GP HB-LB D i m e n s i o n s t o le r a n c e ISO 9426 DHME DH D e n s i t y v a r i a t ion ISO 9427 DHME DH Moi s t u r e c o

    45、nt e nt ISO 16979 DHME DH I n t e r n a l b o nd s t r e n g t h ( I B) ISO 16984 DHME DH B e nd i n g s t r e n g t h ( M O R ) ISO 16978 DHME DH M o d u l u s of e l a s t i c i t y ( M O E ) ISO 16978 ME DH T h i c k n e s s s w e l l i n g a f t e r 2 4 h ISO 16983 DHME DH M o ist ure resist an

    46、ce ISO 16998 ISO 20585 HME H D Dry conditions. H Humid conditions. M High humid conditions. E Exterior conditions. 6.4 Supplementary pr operties If information on supplementary properties is agreed between the user and the manufacturer, it shall be determined using the test methods given in Table 5.

    47、4 ISO 2016 All rights reserved ISO 27769:2016(E) T a b l e 5 S u p p l e m e n t a r y p r o p e r t i e s a n d t e s t m e t h o d s Property T e s t me t ho d S ur fa ce so un dn ess ISO 16981 D i men s ion a l c h a n ge s a s s o c i at e d w it h c h a n ge s i n r el at i ve hu m id it y ISO

    48、16985 Sand content ISO 3340 7 Thickne ss r anges 7.1 Specification v alues Specification values shall be related to the ranges of thickness given in 7.2 and 7.3. 7.2 S oft boar ds For softboards, the specification of a particular thickness of product shall be determined by consulting the correct thi

    49、ckness range as follows: a) 10 mm; b) 10 mm to 19 mm; c) 19 mm to 36 mm; d) 36 mm. 7.3 Hardboards For hardboards, the specification of a particular thickness of product shall be determined by consulting the correct thickness range as follows: a) 3,5 mm; b) 3,5 mm to 5,5 mm; c) 5,5 mm to 9,0 mm; d) 9,0 mm. 8 Expr ession of spec ification limits and ge ner al r equir ements 8.1 Expr ession of spec ification limits This document may be used to evaluate groups of panels or production batches. To evaluate


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